Cassidy Doneff (born July 14, 1986 in Cochrane, Alberta) is a professional Canadian football wide receiver for the Winnipeg Blue Bombers of the Canadian Football League. He was drafted by the Hamilton Tiger-Cats in the sixth round of the 2009 CFL Draft. He played college football for the Washburn Ichabods. In 2008, Doneff won the Wally Buono Award for the most outstanding junior football player.